Hi Joe, I don't know enough about our engines to go much further other than to agree with you that you might want to stay on top of your oil pump. Is your oil cooler installed? I also run watter wetter and just added water pump lubricant to the coolant as well just to be safe. I hope I didn't offend with the viscosity thought. It was not my intention at any rate. Try one of the Lotus forums. There might be some info there. Piston Heads and Golden Gate Lotus Owners are sites I go to sometimes. Best of luck John